1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
120 static char *ksprintn(char *nbuf, uintmax_t num, int base, int *len, int upper);
132 #define	BOOT_TAG	"---<<BOOT>>---"
180 	if (td->td_proc == initproc) {  in uprintf()
189 	p = td->td_proc;  in uprintf()
191 	if ((p->p_flag & P_CONTROLT) == 0) {  in uprintf()
196 	SESS_LOCK(p->p_session);  in uprintf()
197 	pca.tty = p->p_session->s_ttyp;  in uprintf()
198 	SESS_UNLOCK(p->p_session);  in uprintf()
238 	if (pri != -1)  in vtprintf()
242 		if (p->p_flag & P_CONTROLT && p->p_session->s_ttyvp) {  in vtprintf()
243 			sess = p->p_session;  in vtprintf()
246 			tp = sess->s_ttyp;  in vtprintf()
345 	while (uio->uio_resid > 0) {  in log_console()
346 		c = imin(uio->uio_resid, CONSCHUNK - 1);  in log_console()
350 		/* Make sure we're NUL-terminated */  in log_console()
352 		if (consbuffer[c - 1] == '\n')  in log_console()
360 	 * log_console_add_linefeed is non-zero.  For that behavior, if an  in log_console()
371 	 * 'dmesg -a', you wind up with output that looks like this:  in log_console()
411 	retval = _vprintf(-1, TOCONS | TOLOG, fmt, ap);  in vprintf()
448 			msgbuf_addstr(&consmsgbuf, -1,  in prf_putbuf()
460 	if (ap->p_bufr == NULL) {  in putbuf()
461 		prf_putchar(c, ap->flags, ap->pri);  in putbuf()
464 		*ap->p_next++ = c;  in putbuf()
465 		ap->remain--;  in putbuf()
468 		*ap->p_next = '\0';  in putbuf()
471 		if (ap->remain == 2 || c == '\n') {  in putbuf()
472 			prf_putbuf(ap->p_bufr, ap->flags, ap->pri);  in putbuf()
474 			ap->p_next = ap->p_bufr;  in putbuf()
475 			ap->remain = ap->n_bufr;  in putbuf()
476 			*ap->p_next = '\0';  in putbuf()
482 		 * ap->remain == 2 (if not sooner due to a newline), flush  in putbuf()
487 		KASSERT(ap->remain > 2, ("Bad buffer logic, remain = %zd",  in putbuf()
488 		    ap->remain));  in putbuf()
501 	struct tty *tp = ap->tty;  in putchar()
502 	int flags = ap->flags;  in putchar()
601 	if (info->remain >= 2) {  in snprintf_func()
602 		*info->str++ = ch;  in snprintf_func()
603 		info->remain--;  in snprintf_func()
608  * Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
614 ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)  in ksprintn()  argument
621 		c = hex2ascii(num % base);  in ksprintn()
623 	} while (num /= base);  in ksprintn()
625 		*lenp = p - nbuf;  in ksprintn()
651  * XXX:  %D  -- Hexdump, takes pointer and separator string:
652  *		("%6D", ptr, ":")   -> XX:XX:XX:XX:XX:XX
653  *		("%*D", len, ptr, " " -> XX XX XX XX ...
664 	uintmax_t num;  in kvprintf()  local
671 	num = 0;  in kvprintf()
692 		percent = fmt - 1;  in kvprintf()
706 		case '-':  in kvprintf()
717 					width = -width;  in kvprintf()
732 					n = n * 10 + ch - '0';  in kvprintf()
747 			width -= 1;  in kvprintf()
750 				while (width--)  in kvprintf()
754 				while (width--)  in kvprintf()
762 			while(width--) {  in kvprintf()
819 			num = (uintptr_t)va_arg(ap, void *);  in kvprintf()
841 			width -= n;  in kvprintf()
844 				while (width--)  in kvprintf()
846 			while (n--)  in kvprintf()
849 				while (width--)  in kvprintf()
872 				num = va_arg(ap, uintmax_t);  in kvprintf()
874 				num = va_arg(ap, u_quad_t);  in kvprintf()
876 				num = va_arg(ap, ptrdiff_t);  in kvprintf()
878 				num = va_arg(ap, u_long);  in kvprintf()
880 				num = va_arg(ap, size_t);  in kvprintf()
882 				num = (u_short)va_arg(ap, int);  in kvprintf()
884 				num = (u_char)va_arg(ap, int);  in kvprintf()
886 				num = va_arg(ap, u_int);  in kvprintf()
894 				num = va_arg(ap, intmax_t);  in kvprintf()
896 				num = va_arg(ap, quad_t);  in kvprintf()
898 				num = va_arg(ap, ptrdiff_t);  in kvprintf()
900 				num = va_arg(ap, long);  in kvprintf()
902 				num = va_arg(ap, ssize_t);  in kvprintf()
904 				num = (short)va_arg(ap, int);  in kvprintf()
906 				num = (signed char)va_arg(ap, int);  in kvprintf()
908 				num = va_arg(ap, int);  in kvprintf()
909 			if ((intmax_t)num < 0) {  in kvprintf()
910 				sign = '-';  in kvprintf()
911 				num = -(intmax_t)num;  in kvprintf()
914 			p = ksprintn(nbuf, num, base, &n, upper);  in kvprintf()
916 			if (sharpflag && num != 0) {  in kvprintf()
926 				dwidth = width - tmp;  in kvprintf()
927 			width -= tmp + imax(dwidth, n);  in kvprintf()
928 			dwidth -= n;  in kvprintf()
930 				while (width-- > 0)  in kvprintf()
934 			if (sharpflag && num != 0) {  in kvprintf()
942 			while (dwidth-- > 0)  in kvprintf()
946 				PCHAR(*p--);  in kvprintf()
948 			if (bconv && num != 0) {  in kvprintf()
953 					if (num & (1 << (n - 1))) {  in kvprintf()
964 					width -= retval - tmp;  in kvprintf()
969 				while (width-- > 0)  in kvprintf()
995 	static int lastpri = -1;  in msglogchar()
1004 	if (pri != -1 && pri != lastpri) {  in msglogchar()
1011 			msgbuf_addchar(msgbufp, *p--);  in msglogchar()
1018 		lastpri = -1;  in msglogchar()
1041 	size -= sizeof(*msgbufp);  in msgbufinit()
1068 	error = priv_check(req->td, PRIV_MSGBUF);  in sysctl_kern_msgbuf()
1090 			len -= bp - buf;  in sysctl_kern_msgbuf()
1115 	error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);  in sysctl_kern_msgbuf_clear()
1116 	if (!error && req->newptr) {  in sysctl_kern_msgbuf_clear()
1142 	    msgbufp->msg_magic, msgbufp->msg_size, msgbufp->msg_rseq,  in DB_SHOW_COMMAND_FLAGS()
1143 	    msgbufp->msg_wseq, msgbufp->msg_ptr, msgbufp->msg_cksum);  in DB_SHOW_COMMAND_FLAGS()
1144 	for (i = 0; i < msgbufp->msg_size && !db_pager_quit; i++) {  in DB_SHOW_COMMAND_FLAGS()
1145 		j = MSGBUF_SEQ_TO_POS(msgbufp, i + msgbufp->msg_rseq);  in DB_SHOW_COMMAND_FLAGS()
1146 		db_printf("%c", msgbufp->msg_ptr[j]);  in DB_SHOW_COMMAND_FLAGS()
1157 	int cols;  in hexdump()  local
1167 		cols = flags & HD_COLUMN_MASK;  in hexdump()
1169 		cols = 16;  in hexdump()
1172 	for (i = 0; i < length; i+= cols) {  in hexdump()
1180 			for (j = 0; j < cols; j++) {  in hexdump()
1191 			for (j = 0; j < cols; j++) {  in hexdump()
1212 	int cols;  in sbuf_hexdump()  local
1222 		cols = flags & HD_COLUMN_MASK;  in sbuf_hexdump()
1224 		cols = 16;  in sbuf_hexdump()
1227 	for (i = 0; i < length; i+= cols) {  in sbuf_hexdump()
1235 			for (j = 0; j < cols; j++) {  in sbuf_hexdump()
1246 			for (j = 0; j < cols; j++) {  in sbuf_hexdump()
1272 		if (atomic_cmpset_int(counter, c, c - 1)) {  in counted_warning()
1275 			    td->td_proc->p_pid, td->td_name, msg,  in counted_warning()
1276 			    c > 1 ? "" : " - not logging anymore");  in counted_warning()
1288 	prf_putbuf(sbuf_data(sb), TOLOG | TOCONS, -1);  in sbuf_putbuf()
1318 	prf_putbuf(dataptr, TOLOG | TOCONS, -1);  in sbuf_printf_drain()
1327 		return (-errno);  in sbuf_printf_drain()